Improvement in apparatus for exhausting and washing gas



G. H. BBUWN Q J. l. THOMAS.

Apparatusfor Exhausting and Washing Gas.

No.1'37q174. PatentedMarch25,18'73.

WITNESSES: INVENTORS:

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AM. PHOTOYUTHOGRAPHIC G0v mdassamvs's macesi' UNITED STATES PATENT Orrron.

CHARLES H. BROWN AND JOHN J. THOMAS, or PHILADELPHIA, PA.

IMPROVEMENT IN APPARATUS FOR EXHAUSTING AND WASHING GAS.

Specification forming part of Letters Patent No. 197,174, dated March 25, 1873.

To all whom it may concern: 7

Be it known that we, Unnenns H. BRowN and JOHN J. THOMAS, of the city of Philadelphia, in the State of Pennsylvania, have invented certain Improvements in theApparatus for Exhausting and Washing Gas, of which the following is a specification:

Our invention relates to the introduction of low steam or hot water, or both together, into the downward-extending vertical portion of the discharge-pipe at apart of the latter as near to the hydraulic main as possible. This we accomplish by means of jet tubes introduced into the discharge-pipe and communicating with a pipe leading to a steam-generator or to a water-reservoir, giving sufficient pressure in such-a manner that the steam or water, or both together, will be discharged downward within the said pipe in any required number of streams; the object of our invention being to efiect a more perfect P-X hausting result in the hydraulic main and re torts, a more thorough washing of the gas,and the prevention of deposits or obstructions in the said discharge-pipe.

The drawing represents a bench of three retorts, A A A, communicating in the usual manner with the hydraulic main B and dischargepipe (J, and embodying our invention. The jet-tubes D D, any requisite number of which may be applied, are introduced in a steam-tight manner through the shell of the vertical portion of the discharge-pipe (J, so as to discharge the steam or water, or both together, in the downward direction of the flow of the gas through the said discharge-pipe, as represented in the drawing, the dischargepipe 0 being broken out in the drawing at thepart where the jet-tubes D D are inserted in order to show the positions of the dischargin g ends of the said jet-tubes within the said pipe 0. The jet tubes communicate in a steam-tight manner with a supply-pipe, d, leading into communication with the steamgenerator or boiler, (not shown,) so that the steam or water will be driven by-pressure into the pipe 0 through the jet-tubes D.

. In the present case the jet-tubes enter the vertical portion of the discharge-pipe G, because the horizontal portion of said pipe, although near to the main B, is more liable to retain deposits of oil in consequence of its horizontal position; and it is one of the'advantageous features of our invention that the jet-tubes D be placed to operate in the vertical portion of the discharge-pipe and in the downward direction.

It will be understood, without further description, that as the jet-tubes D discharge the steam or hot water, or both together, into the discharge-pipe directly, as near to the vertical portion of the discharge-pipe, and in the downward direction of the flow of the gas and oil, the exhaustive effect, in combination with the gravitation of the oil, will be more perfect and reliable than if the jets were discharged in the horizontal portion of the discharge-pipe above; that the washing of the gas by numerous jets discharging within the discharge-pipe (J'itself, in the downward direction shown, the gas will be thoroughly washed and the discharge-pipe G at the same time kept clear of any deposits which might otherwise obstruct the flow of the gas.

We are aware that separate jets of steam and water have been used before in the horizontal portion of the discharge-pipe; and, therefore, we do not desire to claim, broadly, the arrangement of such jet-pipes in the horizontal portion of the exhaust-pipe; but

What we desire to secure by Letters Patent is confined to the following, viz:

In combination with the vertical or downward-projecting portion of the discharge-pipe O the jet-tubes 1), constructed and arranged to discharge steam or water, or both together, into the said discharge-pipe O, substantially as hereinbefore set forth and described, and for the purposes specified.

CHARLES H. BROWN. JOHN J. THOMAS.

Witnesses:

BENJ. Monrson, WM. H. MORISON. 

